1. A chemist has a 60g sample of element X and incrementally adds element Y, known to react with element X, until all X has reacted. The final mass is 105g. Suppose X is 1amu and Y is 3amu. a. Find the percent mass composition. b. Find the empirical formula for the compound of X and Y.    Hint: Let the subscript of X be m and the subscript of Y be n.    Hint: Find the molar mass of XY in terms of m and n.    Hint: Form one equation from the ratio of mol X to mol XY and another from the ratio of mol X to mol XY.    You are allowed to use wolphramalpa or desmos to algebraically solve the system of equations. Note your result should be a line, not a single pair. Multiply m and n so they are whole numbers. c. Find the molar mass if the coefficients are 3 times the empirical formula

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Mole Concept

Mole concept is a method to determine the amount of any substance that consists of some elemental particles using a grouping unit called ‘mole’. The mole concept enables one to handle the large amount of small elementary particles. The mole concept can be used in many calculations related to mole calculation, molar amount, mole ratio, and so on, which are significant in chemistry.